US1086084A

US1086084A - Feeding mechanism for stitching-machines.

Info

Publication number: US1086084A
Application number: US46675608A
Authority: US
Inventors: Daniel Reiser
Original assignee: J B SAVAGE
Current assignee: J B SAVAGE
Priority date: 1908-12-10
Filing date: 1908-12-10
Publication date: 1914-02-03
Anticipated expiration: 1931-02-03

Description

M55555.- WM/ D. REISER. FEEDING MECHANISM FOR STITGHING MACHINES. APPLICATION FILED DEO.10, 1908.

1,086,084. Patented Feb. 3, 1914,

6 SHEETS-SHEET 1.

- I I [ZZU'EZZfflJT V JM D. REISER. FEEDING MECHANISM FOR STITOHING MACHINES.

APPLICATION FILED DEO.10', 1908. 1,086,084, v Patented Feb. 3, 1914.

5 SHEETSSHEET 2.

171255555.- j fzzzrszzzaz:

- D. REI SER. FEEDING MECHANISM FOR STITGHING MACHINES.

AIILIGATION FILED DEC. 10, 1908.

Patented Feb. 3, 1914.

5 SHEETS-SHEET 3.

D. ERIEER. FEEDING MECHANISM FOR STITOHING MACHINES.

APPLIUATION I'ILED DEC. 10, 1908. 1 86,084. Patented Feb. 3, 1914.

D. REISER. FEEDING MECHANISM FOR STITGHING MACHINES.

' APPLIOATION FILED no. 10, 1908. 1,086,084. Patented Feb. 3, 1914.

5 SHEBTS-SHEBT 5.

7242235555.- .fmre 22227]: CMwd-W- w means seats a detail of one of UNITED STATES PATENT omo.

FEEDING MECHANISM FOR STITCHING-MAGHINES.

Specification of LettersPatent.

To all whom it may concern Be it known that I, DANIEL REisER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Feeding Mechanisms for Stitching-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates tomachines which are employed to stitch together the leaves and paper covers of books, as in the case of pamphlets, catalogues, etc.

The objects of the invention are to provide machines of this character with feeding means for supplying the assembled leaves and covers to a stitching mechanism; to combine, with such feedin means, means for automatically securing t e proper relation between the leaves and between such leaves and the cover of each book at the time when the books are subjected to the action of the stitching mechanism; to provide means for automatically stopping at predetermined intervals the travel of each book to subject it a plurality of times to the action of the stitching mechanism; to provide automatically operating means whereby the stitches taken in books will be we cessively staggered to permit the proper stacking of such books; and to provide for automatically ejecting the stitched books from the feeding and stitching machine to stack the same.

VVith the above and other objects in view, the invention may be defined as consisting generally of the combinations of elements embodied in the claims hereto annexed and illustrated in thedrawings forming a part hereof, wherein Figure 1 represents a front. elevation of a mac ine constructed in accordance with my invention Fig. 2 represents an end elevation of such machine; Fig. 3 represents a top plan view of the aforesaid machine; Fig. 4 reprethe levers which are employed to arrest the travel of the unfinished book along the saddle, the saddle being represented in section; Fig. 5repi'esents a detail in plan of the ejecting mechanism; Fig. 6

represents a deta showing the associated represents an corresponding to the 1 FFICE.

DANIEL REISER, OF CLEVELAND, OHIO, ASSIGNOR TO J. B. SAVAGE, OFCLEVELAND,

Patented Feb. 3, 1914.. Application filed December 10'; 1908. Serial No. 486,756.

il of one end of the saddle,

enlarged belts or tapes; Fig.

sectional detail ine 77 of Fig.

s a sectional detail correline- 88 of Fig. 7

Fig. 9

represents a sectional detail corresponding to the line 9 9 sents a similar vi line 10-40 of F perspective view and Fig. 12 rep of one of the lev 11 carrying out my invention chine disclosed h machine provided wit a clutch and pulley f in operation at wil books, eonve the erably of leathe side of the sadd said belts oper shaft, a plurality 0 stops or abutment periodically into books to aline the 1 devices, automatica are arranged to. subject each book determined number of times to the of Fig. 5

Fig. 10 repreew corresponding to the 1g. 1; Fig.

11 represents a of the cam shaft and cams. resents a perspective view ers which operates to aline the leaves and covers of the books.

in the maerein, I employ a stitching h an operating shaft, or placing such shaft a support or saddle for yer belts consisting prefr tapes mounted on each driving mechanism for ated from the aforesaid.

f automatically operated 5 adapted to be brought the path of travel of the eaves and covers. moving lly operating stops which tion of the stitching mechanism, means forautomatically varying in successive books the points at which they shall be stitched, cally operating ejector for and an automati discharging the fi rier to stack the same.

Describing the aforesaid the machine comprises a cure characters,

frame having 'a 0 standards 2. suitable shape nished books from the carparts by referentral standard 1 and'end These standards will be of to accommodate the frame and mechanism supported thereby and are mounted on a base 3. "The frame comprises a rear longitudinal longitudinally exten 5, the members 4 and the aforesaid sta ndards.

member 4 and a front ding support or saddle 5 being supported by 6 denotes the shaft which operates the stitch-applying mechanism. provided with a pullev 7 th of which it may be rotated.

This shaft is ereon, by means there subjected to the action of the stitchingmechanism proper ,to unite the leaves and covers to form books.

The mechanism comprised b elements 6 to 11 inclusive is old and wel known in the art and requires no further illustration or description.

The saddle 5 is substantially the shape of an inverted V, as will appear more particularly by reference to Figs. 4 and 7. This saddle forms a support for the books while the same are being carried to and beyond the stitching mechanism and to the ejector after the stitching operation, the apex of the saddle receiving the middle portions of the open books. This saddle constitutes a part of the book-feeding mechanism, which will now be described. The shaft 6 is provided with a grooved pulley 12 at the rear end thereof for the reception of the belt 13 which, as previously stated, is preferably of leather tape. A pair of similar but smaller pulleys 14 and 15 are mounted below'the pulley 12, preferably being carried by a shaft 16 supported by the bracket 17 projecting rearwardly from the'standard 1.

18 and 19 denote a pair of pulleys similar to pulleys 14 and 15 and supported by a forwardly-projecting bracket 20 carried by standard 1. Above the pulleys 18 and 19 are located a pair of

pulleys

21 and 22 havof saddle 5, shaft ing' their axes below the saddle 5 and at right angles to the direction of said saddle.

23 and 24 denote pulleys located at opposite ends of saddle 5 and adjacent the rear thereof, said pulleys having their upper sur faces projecting abovelsaid saddle and their lower surfaces below said saddle. Pulle s 23 and 24 are mounted respectively on

sha ts

25 and 26 which are located at opposite ends 26 being mounted in a journal box 27 which is adjustable up and down and toward and from the saddle 5 by means of a bolt 28 extending through a strap 29 and into said, journal box, said bolt being provided with'a wing nut 30. The front ends of

shafts

25 and 26 are provided respectively with pulleys 31 and 32 for the reception of a second belt 33, pulleys 31 and 32 being located in the same manner with respect to the front of saddle 5, as pulleys 23 and 24 are mounted with respect to the rear portion of said saddle. The belt 13 constitutes a feed belt, as well asv a drive belt, for the belt 33, the former belt extending around the

pulleys

14, 18, 21, 23, 24, 22,

- 1.9, 15 and 12, while belt 33 extends around pulleys 31 and 32.

As the saddle 5 extends directly beneath the stitching mechanism, it will be apparent that, in the construction described thus far, books placed on the saddle with their inner leaves resting on the

belts

13 and 33 will be carried past and in operative relation to the stitching mechanism. As it is an easy matter for the relative positions of the leaves and of the leaves and covers to be altered, I have provided the machine with automatically-operating alining devices which are adapted to present the books to the stitching mechanism with thecovers and leaves properly alined. For this purpose I employ a plurality of levers, each having means adapted to engage the books, and a cam shaft havingcams thereon for operating said levers to bring the engaging devices thereof into and out of the pathof travel of the books on the saddle.

34 denotes the cam shaft, the same being shown as extending from end to end of the machine and provided with a bevel pinion 35 thereon meshing with a similar pinion 36 on a shaft 37. Shaft 37 is driven from shaft 6 by means of a pinion 38 on shaft 6 meshing with a gear 39 on shaft 37. The gear 39 and pinion 38 are so proportioned, in the embodiment shown herein, that shaft 6 will make four revolutions to one of shaft 37 and shaft 34. The cam shaft 34 is provided on the feed side of the machine (that'is to say, the side from which books are conveyed toward the stitching mechanism) with a plurality of

cams

40, 41, 42 and 43, and on the delivery or discharge side with a plurality of cams44, 45, 46, 47 and 115.

49 denotes a short shaft located near the feed end of the rear frame member 4 and having thereon a lever 50, said lever extendin over the cam 40 and being provided at its ront end with a book-engaging member 51. The shaft 49 extends through bosses 52 formed on the frame 4 and constituting bearings for said shaft. The shaft is provided at one end witha stop nut 53 and at its opposite end with a nut 54 between which and the adjacent bearing 52 there is interposed a spring 55 which normally holds shaft 49 in the position shown in Fig. 3 of the drawings, with the cam 40.

Levers

56, 57 and 58 are preferably mounted on a common shaft 59 supported from the frame member 4, said levers overhanging respectively the

cams

41, 42 and43. Each of the

levers

50, 56, 57 and 58 is providedwith a roller 50", 56, 57, and 58, respectively, engaging the subjacent surfaces of the correspondin cams. Each of these cams is provided with a recess whereby its lever may be dropped to bringlthe book-engaging member carried at t e front end thereof into the path of travel of a book on the saddle 5,'said cams and the relative arthe lever overhanging rangement of the recesses thereof being shown in detail in Fig. 11. Lever 56 is provided with a book-engaging member 60 which. cooperates with member 51 in the manner to be described hereinafter. In addition to roller 50, the lever 50 carries a second roller 50", theaxis of which extends downwardly as shown in detail in Fig. 12, said roller beingadapted to engage a cam 61 carried by cam shaft 34 and conveniently formed as part of the cam 40, to move the lever 50 toward the lever 56.

At the outer end of lever 57 there is carried a yoke 62 which supports a shaft 63 on which are rigidly mounted a pair of frustoconical rollers 64, said rollers having their bases presented outwardly and being substantially parallel with the opposite surfaces of the saddle and forming, with such saddle, a passageway for the books in their transit to the stitching mechanism. These rollers form in effect a single roller and each is provided with projections 65 which are" adapted to engage the cover of the-book thercbeneath for the purpose of feeding the same bodily along the leaves thereunder and, in conjunction with the stop 90, to secure a final alinement of the leaves and cover before-subjecting the book to the action of the stitching mechanism.

Shaft 63 is provided with a gear 67 meshing with a gear 68 on a shaft 69, which shaft is provided at its inner end with a friction disk 70 driven by a friction disk 71 on shaft 34. The shaft 69 is also provided with a .pulley 72 havinga belt 72 thereon driving a shaft 73 by means of a pulley 74. Shaft 73 in turn drives a feed disk 74 which projects through the saddle 5 beneath the rollers 64 and gives to the leaves of the books a final adjustment before the book reaches the stitching mechanism. The disk 74 is driven from shaft 73 by means of

pulleys

75 and 76 and a belt 77, and the yoke 62 is pivoted on the outer end of shaft 69. The

cams

40, 41, 42, and 43 are each rovided with a recess which will allow the evers corresponding thereto to drop and bring their respective engaging devices into the path of travel of the books. This recess in the form shown herein, occupies about one-quarter of the circumference of each cam and the cam. 61 will be so arranged as to operate lever 50 when the roller 50 is in the recess of cam 40.

78, 79, 80 and 81 denote levers which are preferably mounted on a common shaft 82, said shaft being mounted in bearings 83 carried by the rear frame member 4 and having its ends projecting beyond said bearings. At one end the shaft is provided with a. nut 84 and a spring 85 between said nut and the adjacent bearing and tending to move the shaft. and the levers thereon bodily to the right. 'At its opposite .vance of the lifting of lever and the shaft is provided with an arm 86 sleeved thereon and provided with a roller, 87 intermediate of the ends thereof adapted to be engaged by a cam 88. The outer end of the arm 86 is pivotally supported at 89 on the stud on which the cam is sleeved.

Each of the

levers

78, 79, 80 and 81 has at its outer end of a book-engaging

member

90, 91, 92 and 93, respectively, similar. to the member 51. As W1ll a pear more particularly from Figs. 1 and 3, these engagin members are substantially equi-distant and correspond to the relative positions which each book will occupy while being stitched. The

cams

44,45, 46, and 47 are similar to the earns 41, 42 and 43 and operate their respective levers in the same manner as the latter cams. The recesses in cams 44 to 47 inclusive are located about 90 degrees apart, as shown in Fig. 11, so that lever 79 will be dropped to brin its member91 into operative relation witE a book slightly in ad- 78, and lever 80 will, in like manner, be dropped slightly before lever 79 is lifted, and so on for the series of cams.

At its delivery end, the machine is provided with a delivery or ejector mechanism for discharging therefrom and stacking the books which have been stitched. This mechanism comprises generally'a pair of drums located above the saddle, a belt coacting with said drums and a blade adapted to be projected through the ridge of the saddle to bring the books thereon between the belt and one of the drums to cause the books. to be delivered laterally with respectto the direction of travel imparted thereto by the

belts

13 and 33 with means for automatically operating said blade at predetermined intervals.

Near the delivery end of the machine, a pair of frames 94 are provided, said frames being supported by a base 95 which in turn is carried by a bracket 96 on the end standard 2. Each of the frames 94 is generally semicircular in outline and incloses the saddle 5 and each is provided on the front portion thereof with a standard 97.

98 denotes a roller which is journaled in the standards 97, -and.99 and 100 denote shafts which are journaled in the upper portions of the frames 94 on opposite sides of the central portion of the saddle 5:

Shafts

99 and 100 are provided with

gears

101, 102 respectively, said gears intermeshing whereby one of said shafts may be' driven from the other and the shaft 100 is driven by means of a chain 103 extending around a sprocket 104 on shaft 100 and around a sprocket 105 carried on a stub shaft 106 which in turn is driven from shaft 34 by means of gears 107 and 108 located on shafts 106 and 34 respectively. The

shafts

99 and 100 are provided with for belts enlargements constituting in efiect drums 109. Three such belts are shown and each is arranged as illustrated more particularly in Fig. 10, whei'ein the belt is shown as extending around roller 98, drum enlargement on shaft 100 and over. the top of drum enlargement on shaft 99, the latter shaft being so located as to bight the belt in its passage from shaft 100 to shaft 98.

It will be noted that the lower portions of belts 109 clear the upper surface of the saddle 5 and, in order to deliver the books to the action of the belts and cofiperating drums, I have rovided the following struction. 110 enotes a blade which 1s carried by

arms

111 and 112. These arms extend through the base plate 95, and arm 111 is connected to the outer end of the bent lever 48 by means of a in 113 on said arm fitting. in a slot 114 in t he. end of the lever. Lever 48 is provided with a roller 48 resting on top of the cam 115. This cam is provided with an elevation 116 which is adapted to engage roller 48 and thereby elevate the lever 48 and the arm 111 connected thereto. For the purpose of operating arm 112 I connect to each of the

arms

111 and 112 the upperend of a toggle 117, the lower end of each toggle being connected to the base plate 95 and said toggles having their knuckles connected by means of a link 118. It will be apparent that, by operating the arm 111, corresponding movement will be transmitted to the arm 112 by means of the toggles 117 and the link connecting the same. The cam 88 is carried by a gear 119 sleeved on a stub shaft 120 journaled in the rear frame member 4, gear 119 being driven by gear 108 on the end of shaft 34. The front end of lever 86 is pivoted to ears forming an extension of stub shaft 120.

With the parts arranged as described, the operation Wlll be as follows: By depressing the treadle 8 the pulley 7 is connected up to the shaft 6 and the motion of this shaft is transmitted to the cam shaft 34 and to the

leather tape belts

13 and 33, all of which parts operate with a continuous and uniform movement durin the depression of said treadle. The boo (catalo es, pamphlets, etc.,) are placed on the sa dle 5 with the middle leaves resting on said saddle and 'on the

belts

13 and 33, with the backs of the books presented upwardly. As applied to the saddle, the.leaves are stacked upon one another with the cover resting on to of the uppermost leaf. The recesses on

t e cams

40, 41, 42 and 43 are so arranged that the front end of a book will be engaged'by the member 60 on lever 56 before it can pass thereunder, As soon as the book is so engaged, the member 51 will be moved toward the member 60 by the action of the cam 61 u .on the downwardly projecting roller 50 of the lever 50. The book is thus subjected to two forces tending to aline the leaves and the cover, namely, the

belts

13 and 33 acting on the innermost leaf to carry the same toward the stitchin mechanism and the member 51 acting in the same direction upon the cover. Further rotation of shaft 34 elevates .levers 50 and 56 and permits the book to travel toward the stitching mecha- While thus engaged and before the first stitch is taken lever 57 drops and the rollers 64 engage the cover of the book. Subjected to the combined action of

belts

13 and 33, disk 74 and rollers 64, the leaves and cover are given a final alinement before the first stitch is taken. Levers 57 and 7 8 are then elevated by their cams and the book is carried forward by the belts until its front end engages member 91. Here the second stitch is taken. Lever 79 is then elevated and the book travels forward until its front end abuts against member 92. In this position the third stitch is taken. Lever 80 is then elevated by its cam 46 and the book is carried forward by its belts until it abuts against the member 93, where the fourth and last stitch is taken. Where four stitches are taken, four

cams

44, 45, 46 and 47 will be provided, each cam having its recess arrangedat an angle of about 90 degrees with respect to that of its preceding cam, and, to insure that the levers will drop in time to interrupt the books, the recess in each cam of the series 4547 is given a slight overlap in the recess in its preceding cam in the series. cam 47, the book is carried beneath the ejector. When in proper position beneath the ejector, the cam 115 elevates the lever 48, projects the blade 110- through the. slot in the saddle ridge and brings the middle of the back of the stitched book between the lower surfaces of belts 109 and the drums on the shaft 99, thereby delivering the book laterally from the machine. 5

It will be observed that the gear 119 is driven by the pinion 108 and that the high portion of cam 88 is about 180 degrees in extent. With the apparatus arranged to make four stitches in each book, the relative sizes of the gear and pinion will be such as to produce one revolution of gear 119 for two revolutions of shaft 34. It follows that, after one revolution of shaft 34, the cam 88 will shift the shaft 82 longitudinally and bring the rollers on levers 44 to 47 inclusive on the opposite sides of their respective hen lever 81 is elevated by.

..of three, four,

cams from that occupied before, with the result that the stitches next formed in a book will be out of alinement with the stitches formed in the preceding book. At the end of this revolution of the shaft 34, the roller 87 will roll ofi .the high portion of'the cam 88 and the spring 85 will restore the shaft 82 and the levers thereon to the position shown in the drawings. The result will be that the stitches taken in adjacent books will be out of alinement when the books are stacked, thus economizing by the books in shipment.

In the operation of the machine, the catalogues, pamphlets, etc., are fed along in gangs of two or more book lengths, and these gangs, after stitching, are-cut into appropriate book lengths. Each book enerallyhas two stitches or fasteners app ied thereto and the machine shown herein is adapted to handle gangs of two books or pamphlets each, and each book will have two stitches or fasteners therein. By in? creasing the number of stops, and cams and increasing the speed of the cam shaft, gangs five or more books can be fed through the machine and each book be given at least two stitches or fasteners.

By the term book employed in the claims hereto annexed I do not propose to exclude a gang, which may subsequently be divided into a plurality of individual books or pamphlets.

Having what I claim is:

1. In a book-stitching machine, the combination, with stitching mechanism, of a support of inverted V-shape arranged in proximity to said stitching mechanism, belts ocated at opposite sides of said support,

space occupied and means for continuously and uniformlydriving said belts.

2. In a book stitching machine, the combination with book-stitching mechanism, of book feeding mechanism comprising an elongated V-shaped saddle arranged with its apex upward and belts, one on each side of bination,

said saddle between of, said belts frictionall leaf on the saddle, and said belts.

' 3. In a book-stitching machine the comwith stitching mechanism, of a support constructed to hold the books back upward in open condition, belts cooperating with said support and arranged to engage the inner leaves of the books'to feed-the same along said support, an alining stop for the ends of the leaves and book cover, a coyer-engaging device, means for moving said device toward said stop, and means for engaging the same means for driving moving said stop and device into and out of the path said support.

of travel of the books along 4. In a book-stitching machine the comthus described my invention,-

- rollers, and means for the apex and base therebination, with stitching mechanism, of a hoe ceding means arranged to feed the books in open condition to said mechanism, an alining stop for'the ends of the leaves and book cover, a cover-engaging device, means for moving said device toward said stop, and means for moving said stop and device into and out of the path of travel of the books.

5. In a book-stitching machine the combination, with book-stitching mechanism, of a rigid support therebeneath arranged to support the books in open condition with their backs upward, means engaging the inner leaf. of a book for feeding the book along said support, a lever havin a stop arranged to engage the forward en s of the book leaves and cover, a second lever, a back-engaging device carried thereby, cams engaging said levers to move the same into and out of the path of movement of the books on said support, a cam arranged to.

move the second lever toward the first mentioned lever, and a spring for moving the second lever in the opposite direction.

6. In a book-stitching machine, the combination, with stitching mechanism, of a continuously and uniformly moving means for feeding to said mechanism the assembled unstitched leaves and covers of books, and means for automatically alining a plurality of times the leaves and cover of each book prior to subjecting the same to the stitching mechanism.

7. In a book-stitching machine, the combination, with stitching mechanism, ofan inverted V-sha ed saddle extending to sald mechanism, a elt located on each side of said saddle, means for driving said belts, and means for alining the leaves and cover of a book prior 0 subjecting the same to the stitching-mechanism, the last mentioned means comprising a stop arranged to engage the forward edges of theleaves and cover, tapered rollers arranged to engage the cover on the'back thereof, means for drivmg said movin said stop and out of the pat of movement 8. The combination, with a rigid book support, of a pair of feed belts assoc ated therewith and arranged to receive the inner leaves of books thereon, a stop or abutment for engaging the forward ends of the leaves and cover of a book, and a rotary device conforming in shape to the shape of the support andarranged to. engage the outer leaf or cover of a book.

9. The combination, with a rigid book support of substantially inverted V-shape,

rollers into and =-of a book.

a feed belt on each side of said support and 1 arranged to receive the inner leaves of books thereon, a stop or abutment for engaging the. forward ends of the leaves and cover of a book, a rotary device conforming in shape to the shape of the support and arranged to engage the outer leaf or cover of a book, and a feed device projecting above the highest portion of said support and arranged to engage the central portion of the innermost leaf of a book.

10. In a book-stitching machine, the combination, with stitching mechanism, of a support of inverted V-shape, a belt on each side of said support and extending longitudinally thereof, means for driving 881d belt, a stop or abutment, means for bringing the same into and out of operative relation to said support and belt, feeding mechanism comprising a roller corresponding in contour to the contour of the support, means for driving said roller, and means for moving said roller into and out of operative relation with respect to said support.

11. In a book-stitching machine, the com bination, with stitchin mechanism, of a support of inverted V-s ape, a belt on each side of saidsup ort and extending longitudinally there means for driving said belt, a stop or abutment, means for bringing the same into and out of operative relation to said support and belt, a roller corresponding in contour tov the contour of the support. means for driving said roller, means for moving said roller into and out ot operative relation with respect to said support, a disk projecting throughsaid support, and means for rotating said disk.

12. In a book-stitching machine the combination, with stitching mechanism, of a continuously and uniformly moving means for feeding books to and past said mechanism, sto s for arresting the travel of books past sai mechanism, means for moving said stops toward and from said feeding means, and means for shifting said stops toward and from said stitching mechanism so as to locate the stitches in different portions of successive books. i I

13. In a book-stitching machine the combination,with stitching mechanism, of means for feeding books to and nism, stops arranged to successively arrest the travel of books past said mechanism, and means for moving said stops in succession toward and from said feeding means.-

14. In a book-stitching machine, the combination, with stitching mechanism, of means for feeding books to and past said mechanism, a plurality of levers each having a stop arranged to arrest the travel of a book past the stitching mechanism, and a cam shaft having thereon a plurality of cams arranged to engage said levers and operate the same successively.

15. In a book-stitching machine, the combination, with stitching mechanism, of means for feeding books to and past said mechanism, a series of stops arranged to successively arrest the progress of each, book to past said mecha-' apeaoaa I subject the same a plurality of times to the action of the stitching mechanism, andmeans for automatically shifting the positions of said stops with respect to successive books.

16. In a book-stitching machine, the com bination, with stitching mechanism, of means for feeding books to and past said mecha nism, means for arresting a plurality of times the travel of each book past said mechanism to cause a plurality of stitches to be taken in the same, and means whereby the stitches taken in successive books will be staggered.

17. In a book-stitching machine, the combination, with stitching mechanism, of a book support extending to and past said mechanism, belts associated with ,said support, a plurality of levers mounted on a common shaft and each having a stop arranged to engage and arrest the movement of the book by the belts, a cam shaft, and cams on said shaft arranged to engage said levers and operate the same successively.

18. In a book-stitching machine, the combination, with stitching mechanism, of a book support extending to and past said mechanism, a pair of belts associated with said support, a shaft, levers mounted on said shaft and each having a device arranged to arrest the travel of a book past the stitching mechanism, a cam shaft having cams thereon arranged to engage said levers and oper-,

for

ate the same successively, and means imparting longitudinal movement to the lever shaft.

19. In a machine for the purpose set forth, the combination,

with stitching mechanism,

of means for feeding books to said stitching I mechanism, means for interrupting the travel of each book to subject it to the action of said stitchingcmechanism, and means for varying the position of the interrupting means with respect to successive books.

20. In a machine for the purpose set forth, the combination, with stitching mechanism, of means for feeding books to said stitching mechanism, means rupting the travel of each .book to subject it a plurality of times to the action of said stitching mechanism, and means for varying the position of the interrupting means with respect to successive books.

21. In a machine for the .urpose specified, the combination, with stitching mechanism, of a support, means for feeding books along said support and in operative relation to said mechanism, a plurality of levers each having a stop device arranged to be brought into the path of travel of books along said support, means for operating said levers to bring said devices successively into action, and means for shifting the position of'each lever longitudinally with respect to successive books. Y

22. In a machine for the purpose specified,

for successively interthe combination, with stitching mechanism, to shift the positions of the levers thereon of a support extending to said mechanism, a with respect to successive books. 10 shaft, a plurality of levers upon said shaft In testimony whereof, I hereunto afiix my and each havin a device arranged to engage signature in the presence of two witnesses.

' and interrupt the travel of a book along said DANIEL REISER.

support, means for moving said levers suc- Witnesses: cessively toward and from said support, and J. B. HULL, means for automatically moving said shaft BRENNAN B. WEST.